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1. |
Let a random variable X have a binomial distribution with mean 8 and variance 4. If \(P\left( {X \le 2} \right) = \frac{k}{{{2^{16}}}}\), then k is equal to: |
A. | 17 |
B. | 121 |
C. | 1 |
D. | 137 |
Answer» E. | |